MARSHALLTOWN The Premier Line 52SND 5-Inch by 2-Inch Square Notched Margin Trowel Forged from a single piece of highest grade tool steel Tempered, ground, and polished from toe to heel Resilient DuraSoft handle provides a soft feel, reduces fatigue, and offers excellent durability Notch width = 1/4", Notch depth = 1/4", Space between notches = 1/4"